U.S. Tax Filing Guide for Non-U.S. Residents

Short answer: Choose the return by entity classification and activity, not by the owner’s citizenship alone. A foreign-owned single-member LLC may need a pro forma Form 1120 with Form 5472 when the reporting rules apply; a partnership generally files Form 1065 and issues K-1s; a C corporation files Form 1120. A foreign owner may separately need Form 1040-NR depending on U.S.-source income and other facts.

Identify the entity return first

• Foreign-owned U.S. disregarded entity: review the pro forma Form 1120 and Form 5472 reporting rules.
• Domestic partnership: review Form 1065, Schedule K-1, withholding, and foreign-partner filing questions.
• Domestic C corporation: review Form 1120 and any foreign-ownership information returns.
• Foreign individual owner: separately review whether Form 1040-NR may apply.

Choose support based on complexity

Software may suit filers who already know the required returns. Specialized filing support can handle defined foreign-owner workflows. Individualized CPA preparation may be more appropriate when classification, treaty, withholding, multi-owner, U.S. trade or business, or penalty-response issues require professional judgment.

Compare Form 5472 filing services if your question is specifically which Form 5472 provider to use.